England's Tommy Fleetwood holds a one-shot lead at the Volvo Golf Champions tournament in Durban after he birdied the final hole of his third round.
Fleetwood's three-under-par 69 took him to 10 under, with France's Victor Dubuisson (69) and Dutchman Joost Luiten (70) tied for second.
South Africa's Louis Oosthuizen led before a triple-bogey seven on the par-four 16th dropped him to eight under.
Welshman Jamie Donaldson is tied sixth on six under after carding a 68.
Fleetwood is chasing his second European Tour title and the 22-year-old from Southport had a solid 18 holes, sinking a couple of lengthy putts in a round that included four birdies and just one bogey.
"I had to rely on short game," he said. "I scrambled it round well and that's satisfying."
Luiten missed a six-foot eagle putt at the last to finish with a round of 70, while Dubuisson moved into contention with three birdies on the back nine.
Oosthuizen, the 2010 Open champion, compiled an erratic round that also included seven birdies and three bogeys to surrender his share of the overnight lead.
Englishman Paul Casey carded a seven-under-par 65, the low round of the week, to move to four under in the 36-man field.